His health is ______improving. I'm sure he will come back to work soon.
Many years ago, he dreamed of becoming the first person __________ both South and North Poles.
The __________ of his aim depends largely on himself.
I was about to go out __________ he came in.
The goods __________ well, so they __________ out quickly.
We can say __________ that their work is on the path of sound development.